6 A squirrel living in a park bisected by a busy street passes on a mutation...
6 A squirrel living in a park bisected by a busy street passes on a mutation to its offspring that allows them to judge the speed and distance of passing cars more accurately based on the vibration they cause in the ground. Over several generations, the percentage of squirrels expressing this mutation increases equally on both sides of the street. What principle does this demonstrate? A genetic drift BO founder effect CO microevolution DO equilibrium